Surface cooling device for thermal spraying workpiece

By using a cooling assembly consisting of a semiconductor cooling chip and a fan in the thermal spraying device, the problem of slow natural cooling of the workpiece after spraying is solved, achieving rapid cooling of the workpiece and improvement of coating quality, thus adapting to various process requirements.

CN224077511UActive Publication Date: 2026-04-03JINJIANG LANXIN NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing thermal spraying equipment results in a slow natural cooling rate of the workpiece after spraying, which affects production efficiency.

Method used

The cooling assembly, consisting of a semiconductor cooling chip and a fan, cools the gas in the cooling pipe, turning it into cold air to rapidly cool the coated workpiece. The cooling pipe can be replaced by a plug-in assembly to adapt to different cooling requirements.

Benefits of technology

It enables rapid reduction of workpiece surface temperature, improves production efficiency, reduces oxidation reaction, improves coating quality, and can adapt to various process requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of workpiece spraying, and discloses a surface cooling device for a thermal spraying workpiece, which comprises a thermal spraying gun body, the top end of the thermal spraying gun body is fixedly connected with mounting blocks, one side of each mounting block is fixedly connected with a two-side inserting assembly, the interiors of the two mounting blocks are connected with supporting rods in an inserting manner, and the supporting rods are fixedly connected with the two-side inserting assembly. The top end of the supporting rod is fixedly connected with a cooling assembly. According to the surface cooling device for the thermal spraying workpiece, through the arrangement of the cooling assembly, when the surface cooling device is used, a semiconductor chilling plate is started, the semiconductor chilling plate cools gas in a circulation pipe, a draught fan is started, air blown out by the draught fan passes through the interior of the circulation pipe and becomes cold air, and the cold air is blown out from one end of the circulation pipe to cool the sprayed workpiece; the surface temperature of a workpiece can be rapidly reduced, so that continuous spraying is achieved, the production efficiency is improved, meanwhile, oxidation reaction can be reduced, and the quality of a coating is improved.
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Description

Technical Field

[0001] This utility model relates to the field of workpiece spraying technology, and in particular to a surface cooling device for thermally sprayed workpieces. Background Technology

[0002] Thermal spraying, as an important material surface treatment technology, plays a crucial role in multiple industrial sectors. In the aerospace field, to meet the performance requirements of aircraft in extreme environments, thermal spraying technology is used to apply special coatings to critical components such as engine parts and wings to improve their high-temperature resistance, oxidation resistance, and wear resistance. In the machinery manufacturing industry, thermal spraying can repair and strengthen the surfaces of worn parts, extending equipment lifespan and reducing production costs. In industries such as power and chemicals, thermal spray coatings enhance equipment's resistance to corrosion and erosion, ensuring the long-term stable operation of systems. With continuous technological advancements, the application scenarios of thermal spraying technology continue to expand, and the quality and performance requirements for thermally sprayed workpieces are becoming increasingly stringent.

[0003] Existing devices typically place workpieces in the external environment after spraying them with coatings, allowing them to cool naturally. However, natural cooling is slow, which affects the production efficiency of the device. Therefore, a surface cooling device for thermally sprayed workpieces is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this invention is to provide a surface cooling device for thermally sprayed workpieces, which solves the problem mentioned in the background art that most existing devices, after spraying the workpiece, are placed in the external environment to cool naturally, but the natural cooling rate is slow, which affects the production efficiency of the device.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a surface cooling device for thermally sprayed workpieces, comprising a thermal spray gun body, a mounting block fixedly connected to the top of the thermal spray gun body, a two-sided insertion assembly fixedly connected to one side of the mounting block, support rods inserted into the interior of the two sets of mounting blocks, a cooling assembly fixedly connected to the top of the support rods, each set of insertion assemblies including a connecting spring fixedly connected to one side of the mounting block, a sliding rod sleeved inside each set of connecting springs, a limit block fixedly connected to one end of each set of sliding rods, and a pull plate fixedly connected to one side of each set of limit blocks; the cooling assembly includes a flow pipe fixedly connected to the top of the support rods, fans fixedly connected to both sides of the flow pipe, dustproof nets provided on the surface of each fan, and a semiconductor cooling chip provided at the top of the flow pipe.

[0008] As a further embodiment of this invention, the cold side of the semiconductor cooling chip is located inside the flow tube, and the hot side of the semiconductor cooling chip is located outside the flow tube. By setting the semiconductor cooling chip, the blown air is transformed into cold air.

[0009] As a further embodiment of this utility model, a protective box is provided on the top surface of the flow tube, and several sets of heat dissipation holes are opened on the top surface of the protective box. The hot surface of the semiconductor cooling chip is located inside the protective box. The protective box serves to prevent workers from touching the semiconductor cooling chip.

[0010] As a further embodiment of this utility model, a telescopic rod is fixedly connected to the bottom surface of the thermal spray gun body, and a sleeve rod is slidably connected to the outer side of the telescopic rod. The telescopic rod enables the device to be adjusted.

[0011] As a further embodiment of this utility model, the surface of the telescopic rod is provided with several sets of insertion interfaces, and the surface of the sleeve rod is provided with a limiting port. A pin is inserted into the limiting port, and the pin serves to limit the telescopic rod.

[0012] As a further embodiment of this utility model, a connecting block is fixedly connected to one end of the sleeve rod, and a threaded rod is threadedly connected inside the connecting block. A rotary valve is fixedly connected to one end of the threaded rod, and a pressing plate is rotatably connected to the other end of the threaded rod. The pressing plate serves to limit the movement of the device.

[0013] As a further embodiment of this utility model, a feed cylinder is fixedly connected to the top surface of the thermal spray gun body, and a connecting pipe is fixedly connected to one side of the thermal spray gun body. The connecting pipe is connected to an external device, and the feed cylinder serves to place materials.

[0014] (III) Beneficial Effects

[0015] This utility model provides a surface cooling device for thermally sprayed workpieces, which has the following beneficial effects:

[0016] 1. This surface cooling device for thermally sprayed workpieces, through the setting of cooling components, activates a semiconductor cooling chip during use. The semiconductor cooling chip cools the gas inside the flow pipe. Activating a fan turns the air blown out by the fan into cold air after passing through the inside of the flow pipe. The cold air is blown out from one end of the flow pipe to cool the sprayed workpiece, which can rapidly reduce the surface temperature of the workpiece, thereby achieving continuous spraying, improving production efficiency, and at the same time reducing the occurrence of oxidation reactions and improving the quality of the coating.

[0017] 2. This surface cooling device for thermally sprayed workpieces, through the setting of plug-in components, allows for the pulling of a pull plate during use. The movement of the pull plate moves the limiting block, which in turn moves the sliding rod. The sliding rod is then pulled out from inside the support rod, allowing for the replacement of the flow pipe and other components. This enables the device to be replaced according to different cooling requirements, thus better adapting to new processes and production needs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the plug-in assembly structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the cooling component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the extrusion sheet structure of this utility model.

[0022] In the diagram: 1. Thermal spray gun body; 2. Mounting block; 3. Plug-in assembly; 301. Connecting spring; 302. Sliding rod; 303. Limiting block; 304. Pull plate; 4. Support rod; 5. Cooling assembly; 501. Flow pipe; 502. Fan; 503. Dustproof net; 504. Semiconductor cooling chip; 6. Protective box; 7. Telescopic rod; 8. Sleeve rod; 9. Pin; 10. Connecting block; 11. Threaded rod; 12. Rotary valve; 13. Extrusion plate; 14. Feed cylinder; 15. Connecting pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 4This utility model provides a technical solution: a surface cooling device for thermally sprayed workpieces, including a thermal spray gun body 1, a mounting block 2 fixedly connected to the top of the thermal spray gun body 1, and two-sided insertion components 3 fixedly connected to one side of the mounting block 2. The insertion components 3 allow for the replacement of the flow tube 501, etc. Support rods 4 are inserted into the interior of the two sets of mounting blocks 2, and cooling components 5 are fixedly connected to the top of the support rods 4. The cooling components 5 cool the sprayed workpiece. Both sets of insertion components 3... The assembly includes a connecting spring 301 fixedly connected to one side of the mounting block 2. Each of the two sets of connecting springs 301 has a sliding rod 302 sleeved inside. One end of each set of sliding rods 302 is fixedly connected to a limit block 303. One side of each set of limit blocks 303 is fixedly connected to a pull plate 304. The cooling assembly 5 includes a flow pipe 501 fixedly connected to the top of the support rod 4. Both sides of the flow pipe 501 are fixedly connected to a fan 502. The surface of the fan 502 is provided with a dustproof net 503. The top of the flow pipe 501 is provided with a semiconductor cooling chip 504.

[0025] The cold side of the semiconductor cooling chip 504 is located inside the flow tube 501, and the hot side of the semiconductor cooling chip 504 is located outside the flow tube 501. The semiconductor cooling chip 504 is used to turn the blown air into cold air.

[0026] The top surface of the flow tube 501 is provided with a protective box 6. The top surface of the protective box 6 is provided with several sets of heat dissipation holes. The hot side of the semiconductor cooling chip 504 is located inside the protective box 6. The protective box 6 is provided to prevent workers from touching the semiconductor cooling chip 504.

[0027] A telescopic rod 7 is fixedly connected to the bottom surface of the thermal spray gun body 1, and a sleeve rod 8 is slidably connected to the outside of the telescopic rod 7. The telescopic rod 7 enables the device to be adjusted.

[0028] The surface of the telescopic rod 7 is provided with several sets of insertion interfaces, and the surface of the sleeve rod 8 is provided with a limit port. The limit port is connected to a pin 9, which serves to limit the telescopic rod 7.

[0029] One end of the sleeve rod 8 is fixedly connected to a connecting block 10, and the connecting block 10 is internally threaded to a threaded rod 11. One end of the threaded rod 11 is fixedly connected to a rotary valve 12, and the other end of the threaded rod 11 is rotatably connected to a pressing plate 13. The pressing plate 13 serves to limit the movement of the device.

[0030] A feed cylinder 14 is fixedly connected to the top surface of the thermal spray gun body 1, and a connecting pipe 15 is fixedly connected to one side of the thermal spray gun body 1. The connecting pipe 15 is connected to an external device. The feed cylinder 14 serves to place materials.

[0031] In this invention, the working steps of the device are as follows:

[0032] First step: When in use, start the semiconductor cooling chip 504, which cools the gas inside the flow tube 501. Start the fan 502, and the air blown out by the fan 502 becomes cold air after passing through the inside of the flow tube 501. The cold air is blown out from one end of the flow tube 501 to cool the coated workpiece.

[0033] Second step: When in use, pull the pull plate 304. The movement of the pull plate 304 causes the limit block 303 to move, which in turn causes the sliding rod 302 to move. The sliding rod 302 moves and is pulled out from inside the support rod 4, allowing the flow tube 501 and other components to be replaced.

[0034] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0035] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface cooling device for thermal spraying of a workpiece, comprising a thermal spray gun body (1), characterized in that: The top end of the hot spray gun body (1) is fixedly connected with a mounting block (2), one side of the mounting block (2) is fixedly connected with two side plug-in assembly (3), the inside of two groups of the mounting block (2) is plug-in connected with a support rod (4), the top end of the support rod (4) is fixedly connected with a cooling assembly (5), Two groups of the plug-in assembly (3) each include a connecting spring (301) fixedly connected to one side of the mounting block (2), the inside of two groups of the connecting spring (301) is sleeved with a sliding rod (302), one end of two groups of the sliding rod (302) is fixedly connected with a limiting block (303), one side of two groups of the limiting block (303) is fixedly connected with a pull plate (304); The cooling assembly (5) includes a flow pipe (501) fixedly connected to the top end of the support rod (4), both sides of the flow pipe (501) are fixedly connected with a fan (502), the surface of the fan (502) is provided with a dust screen (503), and the top of the flow pipe (501) is provided with a semiconductor refrigeration piece (504).

2. A surface cooling device for thermal spraying of a workpiece according to claim 1, characterized in that: The cold face of the semiconductor refrigeration piece (504) is located inside the flow pipe (501), and the hot face of the semiconductor refrigeration piece (504) is located outside the flow pipe (501).

3. A surface cooling device for thermal spraying a workpiece according to claim 1, characterized in that: The top surface of the flow pipe (501) is provided with a protective box (6), the top surface of the protective box (6) is provided with a plurality of groups of heat dissipation holes, and the hot face of the semiconductor refrigeration piece (504) is located inside the protective box (6).

4. A surface cooling device for thermal spraying a workpiece according to claim 1, characterized in that: The bottom surface of the hot spray gun body (1) is fixedly connected with a telescopic rod (7), and the outer side of the telescopic rod (7) is slidably connected with a sleeve rod (8).

5. A surface cooling device for thermal spraying of a workpiece according to claim 4, characterized in that: The surface of the telescopic rod (7) is provided with a plurality of groups of plug-in ports, the surface of the sleeve rod (8) is provided with a limiting port, and the limiting port is plug-in connected with a bolt (9).

6. A surface cooling device for thermal spraying of a workpiece according to claim 5, characterized in that: One end of the sleeve rod (8) is fixedly connected with a connecting block (10), the inside of the connecting block (10) is threadedly connected with a threaded rod (11), one end of the threaded rod (11) is fixedly connected with a rotating valve (12), and the other end of the threaded rod (11) is rotatably connected with a pressing piece (13).

7. A surface cooling device for thermal spraying a workpiece according to claim 1, wherein: The top surface of the hot spray gun body (1) is fixedly connected with a feeding cylinder (14), one side of the hot spray gun body (1) is fixedly connected with a connecting pipe (15), and the connecting pipe (15) is connected with an external device.